The shortage of surgical masks and FFP2 has prompted the proliferation of tutorials and patterns for making protective masks. Faced with this anthology of advice and models with heterogeneous and sometimes dubious qualities, the international consulting group AFNOR took the initiative to capitalize on leading collective expertise by producing a reference document proposing requirements to be satisfied for the manufacture of new masks. This is the document AFNOR Spec - Barrier masks , accessible for free in version 1.0.

Read more on afnor.org website here.